Angus morrison



(No Model.) l A. MORRISON.

GAR COUPLING. No. 257,886. Patented May16,1882.

S INV'BNTOR:

WITNESSES:

MA/ P 4 ATT NEYS.

UNITED STATES PATENT OFFICE.

ANGUS MORRISON, on BOSTON, MAssAoHUsE'rTsnssmNoR TO WILLIAM J. BRIDE, FSAME PLACE.

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 257,886, dated May 16,1882 Application filed March 23, 1882. (No model.)

To all whom it may concern:

Be it known that I, ANGUS MORRISON, of Boston, in the county of Suffolkand State of Massachusetts, a subject of the Queen of Great Britain,have invented a certain new and useful Improvement in Car-Couplings,ofwhich the following is a full, clear, and exact description.

My invention relates to that class of automatic car-couplings which usea coupling-pin 1o pivoted in the drawhead; and my invention consistsprincipally of a sliding bar for lockin g the coupling-pin, and invarious details of construction, hereinafter more fully specified. Thecoupling-pin is pivoted in the draw-head L to swing vertically in therecess therein, and is adapted to be automatically moved by thecoupling-link, in the act of coupling, sufficiently to permit thepassageof the cross-bar of the link by it, when it falls or returns toits origi- 2o nal position, with its lower end in contact with anabutment or stop for preventing it from beingdrawn forward or toward themouth of the draw-head.

The abutment which is represented in the drawings consists of a slidingbar which is adapted to be moved by any suitable means horizontally in ahorizontal recess or passage in the draw-head across the path ofmovement of the coupling-pin and below the horizontal 3o passage in thedraw-head for receiving the link. This locking-bar of course mayhave arecess extending downwardly from its upper side, as shown in thedrawingsywhich, when brought in line with the pin, will allow or per- 5mit the link to draw the pin toward the front. of the draw-head, andthereby disengage itself therefrom; or the bar may be wholly withdrawnfrom in front of the pin, as may be desired. In the drawings I representthe bar as actuat- 0 ed byarack formed therein upon one side and apinion operated by a rod or shaft; but in lieu of this method of movingthe bar I may use a lever pivoted to the bar and having a fulcrum eitherabove or below the bar, as desired, or a plate having an inclined slotor cam,

in which a pin on the end of the locking-bar projects, and which slot,by the vertical movement of the plate, moves the bar in one direction orthe other, according as the movement of the plate is up or down. Manyother ways of moving the bar could be mentioned, if nec essary; but itis sufficient to say that I do notconfine myself to the specific meansshown. Figure 1 represents a pair of my improved car-couplings as theyappear just before coupling, one of the couplings being represented infull plan, the other being represented in sectional plan, taken on theline w w of Fig. 2. Fig. 2 is a sectional elevation of the couplings,taken on the line y y of Fig. 1; and Fig. 3 is a sectional elevation,taken on the line .2 z of Fig. 1. i j

l A A represent the draw-heads; B B, the couplingpins; O O, the slidinglocking-bars; E E, the vertical rods or shafts upon which 6 the pinionsF F are secured, and D represents the connectiuglink.

The draw-heads A A may be cast solid, but I prefer to cast them in twoparts, com pressing the main or bottom part, a, and the upper part orplate, a, which is secured to the part a by the screw-boltsff, as shownin Figs. 1 and '2. The upper part or plate, a, of each drawheadis castwith the central slot, 1), and with the upwardly-projecting lug c, inand between 7 which the couplingpin is pivoted upon the pivot i. Thelower or main part, a, of the draw head is cast with the side extensionor bracket, 71., upon which the bar 0 moves, and is formed with thehorizontal passage j, through which this bar is moved, and with thecut-away recess or guide-passage d, for the lower end of thecoupling-pin to swing in,as shown in Figs. 1 and 2. The extension orbracket h is formed with the upward projection or shoulder h, 8 5

against which the bar 0 moves, as clearly in dicated in Fig. 1, and bymeans of this shoulder the bar is guided, and to some extent kept incontact with the pinionf, by which the bar is operated. The bar U isformed upon one edge 0 and at one end with the rack is, and upon theupper side, near the other end,with the recess or passage is. This slotor passage is of such depth that when the bar is moved in the pas sage9', so that the recess 70 comes in line with 5 the coupling-pin, thesaid pin is free to swing through the recess or passage and release thelink for uncoupling the cars 5 but when the bar is moved so that therecess k is at one side of v the coupling-pin the bar will en gage thelower end of the pin, and thus hold the connectinglink, as will beclearly understood from Fig. 2.

The bar 0 is moved for releasing and retaining the coupling-pin by meansof the vertical rod or shaftE and the pinion F, secured thereon, whichpinion meshes with the rack 70; but, as before stated, I do not confinemyself to this or any other means for operating it. I f, however, theshaft or rod E and pinion F are to be used,the shaft will be journaledat its lower end in the bracket h, as shown in the drawings, and itsupper end will extend to the top or platform of the ear,where it will beproperly journaled and provided with a hand wheel or crank for turningit, and with a pawl and ratchet for holding it in any proper manner. Itwill be seen that the connecting-link in common use can be used. I v

In preparing for coupling the cars it is only necessary to place thelink in one of the drawheads, as shown in Fig. 2, and to seethat the bar0 in the other coupler is in position to lock the couplingpin, in whichposition the coupling-pin is free to swing inward and drop into theconnecting-link when the link enters the draw-head, but is not free toswing outward, and will thus retain the connecting-link and cause thecars to be coupled,

For uncoupling the cars it is only necessary to move one of the bars 0so that its recess k will register with the slot at of the draw-head, orits end will clear the pin, in which position the coupling-pin is freeto swing through this recess is, or by the end of the bar, and thusrelease the connecting-link.

It will be observed that the locking-bar is below the passage j and thatthe link in its inward movement in the draw-head passage j, in the actof coupling, trips the coupling-pin, as it were, by moving it upwardlyout of the passage until the link-bar has passed beyond the end of thepin, when it falls to its normal positi0n,with its lower end in contactwith the locking-bar.

It will be noticed also that the locking-bar is in substance a movableabutment, which when in place prevents the pin from being swung forward,and which, when removed, allows such movement to take place, and therebyenables the link to become disengaged from the pin by an outwardmovement from the draw-head. v

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- 1. In a car-coupling, the pivoted couplingpinB, in combination with the sliding bar 0, substantially as and for thepurposes set forth.

2. In a draw-head of acar-coupler, the combination of the pivoted pin B,adapted to swing vertically in the passage j and recess 01 on ahorizontal pivot, and the abutment or bar 0, adapted to be moved acrossthe recess d, to form a stop againstwhich the end of the pin shallcontact, and to be withdrawn from said recess to release the pin intheact of uncoupling, all substantial] y as described,and for the purposesset forth.

1 ANGUS MORRISON.

Witnesses:

F. F. RAYMOND, 2d,

W. G. FOGG.

